Nail



June 3, 1930. J. GOULDBOU'RN NAIL Filed Feb. 2a. 1925 8 I lNl/ENTUR Patented June 3, 1930 amen stares JOSEPH GOULDBOURN, 0F LEICESTER, ENGLAND, ASSIGNOR 'TO UNITED MA- CHINERY CORPORATION, OF PATERSON, NEW J'ERSEY,A CORPORATION OF JERSEY I V NAIL 7 Application filed. February as, 1925, Serial No. l2,428,fand in Great Britain March 28, 19l2 l.

This invention relates to nails and is illustrated herein as embo'died'in a nail particularly adapted to the attachment of heels to boots and shoes by inside nailing.

5 Inattaching heels to shoes by inside nailing, it is often diflicult to drive the nails as close to the margin of the heel seat as is desirable. When attaching Louis heels or other heels the cross section of which rapidly decreases 'in passing from the attaching face toward the tread face, great difliculty has been encountered in positioning the nails with their heads as close to the margin of margin of the heel required in shoes having wood heels. If the nails are as long as they through the lateral surfaces of the heels.

It is an object of the present invention to provide improved nails particularly adapted to this class of work which maybe inserted with their heads sufficiently close to the mar gin of the heel seat portion of the sole ofia shoe to provide a permanently tight joint between the shoe upper and the edge of the heel and at the same time will insure a se-v cure attachment ofv the heel. to the shoe and will obviate all possibility of the point of the nail emerging through the lateral 'surface of the heel. The herein disclosed nail H has an oflset head illustrated as inclined. relatively to its shank'and formed to engage the sole member through which it is inserted at a point substantially outside of that at which the nail enters so as to clamp the sole member and the shoe upper securely to the heel. The entering end of the illustrated nail is shaped to cause the nail tocurve or run, as it is inserted, in a direction away from themargin of the work. The curving orrunn1ng of such a nail 1s accomphshed,

as herein disclosed, by forming its pointunsymmetrically relative to the axisv of its shank. As illustrated, the entering end of the nail is beveled on one side so that its point lies approximately on thecircumfer- ""ence of the shank. Under these circumthe heel seat as is necessary to maintain the tight joint between the shoe upper and the together substantially at the edge of theheel seat without danger of the points of, the nails emerging throughthe lateral surface'of the heel.

l/Vith the above and other objects and fea tures in View, the invention will .now be; 1 described with reference to theaccompanying drawings and pointed out in the claims.

' In the drawings,

the present invention;

of the 'nail taken from a viewpoint between those of Figs. 1 and 2; A

Figs. 5 and 6 are elevational views'at,

Figs. 1 and 2 are elevational viewsat right angles to each other of a nailembodyin' =65 .Fig. 3 is a plan view showing the term- 'tion of the head'of this nail; a

Fig. .4 is an elevation of the entering end;

right angles'to each other ofthe enteringend of a nail having a different form of point;

Fig. 7 is a sectionalview of a portion of a shoe having its heel attached by the herein disclosed nail Fig; 8 is a sectional view through aportion' of" anailing'die ofva heeling machine tion in a driver passage of said die; and

with en'of e of h p esent-inve 'Fig. 9 is a horizontal cross section on tlie' line 99 of Fig- 8.

The herein disclosed nail is provided with a cylindrical shank 3 several times'as long symmetrical andinclinedat about 135 to the shank of the nail, andfiaring so that the portion of the head remote from the shank is lies'approximately on the circumference of the'shank. Inthe case of awirenail having the wire nail stock the beveled point ,willf 15-." *"Ifj-desired, however, t e'point of the ihave an appearance substantially as in Figs; 1, 2 and 4 with two-f facets 11 and 13fmutu- V ally inclined toward a rid e or ie 1m its Point formed y nipping thenail from g nail may be beveled by a single plane in clined relatively to the shank of the nail, as illustrated in Figs. 5 and 6, but, if of such a formation, the extreme point should be removed, as indicated at 17. Otherwise, be ing very sharp, it is likely to be accidentally deformed and may then interfere with the proper driving of the nail. In either case, the general direction of the bevel of the point (as illustrated in Figs 2 and 8) is approximately parallel to the top surface of the head of the nail.

l/Vhen nails of the character illustrated in Figs. 1 ,to (5 are used for inside nailing to attach heels to shoes, they should be positioned, as indicated in'Fig. 7, with the offset head of the nail pointing toward the margin of the heel seat. Under these circumstances the bevel of the entering end or point of the nail will cause the nail to run or -curve away from the margin of the work so that there will be no danger of the nail breaking through the contour surface of the heel. The head of the nail,because of the inclination of its top surface relatively to the shank, will conform to the curvature of the marginal portion of the heel seat of the sole, and will clamp the sole and the upper securelyto the edge of the heel so as to produce a tight joint between the shoe upper and the heel.

To control the position of the heads and points of the nails relatively to the work, the driver vpassages of the nailing die of the heeling'machine are shaped to conform to the heads of the nails, as illustrated at21 in Fig. 9, and the drivers 23 are of a similar cross section. The different driver passages are positioned with their major axes 25 (Fig. 9) arranged at right angles to the periphery of the heel seat of the shoe to be operated upon and with the smaller ends of the driver passages and drivers nearest the center of the heel seat. The upper ends of the drivers should be beveled (as shown in Fig. 8) at an inclination such that when fully advanced they will befiush with and form continuations of the smooth convex upper surface of the'narllng die.

l/Vith the top surfaces of the heads of the nails, as illustrated in Fig. 8, at a slightly greater inclination than the end of the drivers, the heads of the nails will be 'bent down on the heel seat of the shoe by "the drivers at the conclusion of the stroke of the latter so that the shoe stock will be somewhat compressed beneath the heads of the nails and the exposed surfaces of the heads of the nails will be substantially flush with the inner surface of the sole member of the shoe. of the nail illustrated herein is inclined approximately at 135 degrees to the shank, it should be understood that other inclinations may be used in accordance with the oon- While the head formation of the work part in which the nail is to be inserted.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is 1. A heel nail having its head offset relatively to its shank and its point beveled toward the side of the shank remote from the offset head so that when the nail is driven its point will be deflected in a direction opposite to the direction of the offset of its head, the top surface of the head of the nail being inclined relatively to the shank of the nail in a direction substantially parallel to the bevel of the point.

2. A nail having acylindrical shank with a point offset relatively to the axis of the shank of the nail,'and a head with a fiat top surface, the portion of which remote from the shank is substantially wider than the diameter of the shank, the head being inclined relatively to the axis of the shank and offset on the side of the axis opposite to the point.

3. A nail having a shank several times as long as its head, the entire top surface of its head lying substantially in a single plane and being offset and inclined relatively to its shank with the portion of the head remote from the shank of greater width than- JOSEPH G'OULDBOURN. 

